Improvement in brick-machines



UNITED STATES PATENT OFFICE.

GERARD EANoKER, or NEW YORK, N. Y.

IMPROVEMENT IN BRICK-MACHINES.

Specification forming part of Letters Patent No. 20,536, dated June 15,1858.

' exact description thereof, reference being had to the accompanyingdrawings, forming a part of this specification, the same letters ofreference, wherever they occur, referring to like parts.

Figure l is a side elevation of the machine, omitting the endless beltfor carrying the brick out of the machine. Fig. 2 is a plan view throughthe line Fig. l. Fig. 3 is a vertical cut-section through the line rc2fr?, Fig. 2. Fig. 4 is a vertical cut-section through the line x3 fc3,Fig. 2. Fig. 5 is a detached View of the intermittent feed-motion.

Letter A represents the frame, which may be constructed of any suitablematerial and form to adapt it to the work required of it. At the lowerpart of the frame is secured a bed-plate B. Upon this bed-plate isarranged the circular molding-plate C, arranged upon and made to revolveon a spindle D, extending through an opening in the bed-plate B. Themolding-plate is intended to be thicker than the brick to beformed,andin it are four or any other suitable number of matrices E,arranged atequal distances apart and from the spindle I). Upon theVunder side of the molding-plate is secured cogs F, which gear into asmall bevel cog-wheel G, arranged at right angles to the molding-platefor the purpose of rotating it when required. Onithe outer end of theaxis on the cog-wheel G is secured a second cog-wheel H,Which Agearsinto another cog-wheel I, having upon its axis J (and secured to thecog-wheel I) a quadrated cam K, which is operated upon by a crank-pin L,secured on the crank M, attached to the end of the upper transverseshaft N, for operating one of the compressors and the brick or molddischarger.. The object of this quadrated cam K is to rotate themolding-plate by an intermittent motion the quarter of a circle at eachrevolution of the shafts for operating the compressors, so as to allowtime for lling the molds and compressing the clay to form the brick.

Letter O is a cam on the shaft N, the object of which is to operate auupper plunger or compressorP to compress the clay in the matrix on theupper side in opposition to the action of the lower side plunger orcompressor Q, operated bya cam R on a shafts at the under side of thebed-plate B, and having a uniform speed given to it with that of theshaft N by means of the cog-wheel T and T2 on the ends of theirrespective shafts gearing together through the intermediate cog-wheelT3, arranged on an axis extending from the side of the frame A. Theobject of this arrangement of the two compressors is to compress thebrick at opposite sides while in the matrix, and thereby obviate the useof a bed upon which the clay Would have to be pressed, as well as thetendency of the clay to adhere to the surface of the bed when pressedupon it, and thereby destroy the sharp corners g/of the brick andotherwise affect its perfect forl mation.

Letter U is a grooved cam-Wheel secured upon the shaft N, the object ofwhich is to operate a piston V for the purpose of discharging the brickfrom the matrix upon any suitable endless table or belt for carrying thebrick out of the machine.

Letter W is a hopper into which the pulverized clay is put fordelivering it to the reciprocating feed-box X. This feed-box is securedin suitable guideways upon the frame of the machine, so that its lowersurfaceis on a level with the upper surface of the moldingplate C.Attached to the upper back edge of the feed-box is a ange Y, and alsoasimilar one Y2, attached to the lower front edge of it. The object ofthe first of these iianges Yis to cut off the further supply of clayfrom the hopper when the feed-box has been projected forward over thematrix in the molding-plate C to deliver its charge into the matrix, andthe other Y2 is intended to form a covering or capplate to the matrix tosustain the pressure upon the clay for expelling the air therefrom andshaping the brick when the feed-box has been drawn back to receive asecond charge of clay.

Letter Z is an air-expelling piston. This is arranged in suitableguideways in a vertical position, so that the upper end or face of it isdirectly under the lower opening of the matrix, but near enough toprevent any part of the clayin it escaping. The piston Z is opere ce,

ated by a cam CL2, secured upon a horizontal shaft b2 at the lower parto 'l the machine, which is rotated by means of a cog-Wheel d2 upon itgearing into a propelling cog-wheel e2 on the lower plunger' orpiston-shaft S. The cam a2 is intended to elevate the piston lgraduallytill its greatest pressure, and then byits abrupt termination drop thepiston suddenly, so as to clear the matrix to allow of' the rotation ofthe molding-plate to complete the pressure in the second operation underthe upper andlower pressers.

Letter f2 is a bell-crank secured upon a rock-shaft g2 and havingattached to its vertical arm a connecting-rod h2 for alternating themotion of the feed-box between the hopper and matrix. This alternatingmotion is communicated to the crank by means of a pin 7a2 in the sideof' a Wheel attached or secured upon the shaft h2, operating upon theforked end of the horizontal arm of the crank f2, so that as it rotatesthe pin k2 acts first upon one toe of the fork and then the opposite,and thus transmits a reciprocating motion to the feed-box. v

Letter m2 is a propelling-shaft, having on its end a small cog-Wheel n2,Which gears into a second cog-Wheel p2, secured on the end of the shaftN for operating the upper compressor-piston P.

Having now described the Working parts of 1nyinvention,I Will proceed toset forth What I claim and desire to secure'by Letters Patent of theUnited States:

1. The use of the flanges Y and Y2, in oombination With the feed-box Yand rotating molding-plate C, or equivalents, substantially asdescribed, and for the purposes hereinbefore set forth.

2. The use of the air-expeller piston Z, in combination with therotating molding-plate C and the flange Y2, or equivalents, actuatedsimultaneously with the feed-box, for the purposes substantially ashereinbefore described.

3. In combination with the rotating plate C, the reciprocating feed-boxX, having the flanges Y and Y2 attached thereto, the bellcrank f2, andpin 7c2on the cam a2, when these several parts are constructed,arranged, and operated inthe manner and for the purposes hereinbeforeset forth.

GERARDA BANCKER. Vitnesses:

PETER R. RoAoH, CHARLES L. BARRITT.

